What is an atom?, A mixture of substances, Smallest particle of matter, A type of chemical change, An element is made from, Two types of atoms, One type of atom, A mixture of compounds, Which is an element?, Water, Gold, Air, Water is a compound because, Mixture of liquids, One type of atom, Made of different elements, Which substance is a mixture?, Salt, Sugar, Seawater, In a mixture, substances, Form new substances, Are chemically joined, Keep their properties, Which is a physical change?, Burning a candle, Melting ice, Cement setting, A chemical change is, Easily reversed, Forms new substances, Only changes shape, Which change is permanent?, Ice melting, Sugar dissolving, Cement hardening, A solution is usually, Cloudy with particles, Clear with dissolved particles, A solid mixture.

Basic Chemistry Concepts

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